Endocytoscopic vascular pattern for colorectal lesions

Shin-ei Kudo, MD, PhD, from the Digestive Disease Center, Showa University, Northern Yokohama Hospital, in Yokohama, Japan presents this Original Article “Endocytoscopic microvasculature evaluation is a reliable new diagnostic method for colorectal lesions (with video).”

We clarified the efficacy of endocytoscopic vascular pattern (EC-V) for colorectal lesions. The diagnostic accuracy of EC-V was comparable to conventional magnifying narrow-band imaging (NBI), pit pattern, and endocytoscopic classification based on dye staining(EC-C). Furthermore, EC-V does not require dye staining, therefore EC-V simplifies the complicated dye staining method (Pit pattern or EC-C).

Figure 2. An 8-mm, 0-IIa lesion. A, On white-light imaging, a flat elevated lesion was seen. B, When indigo carmine dye was sprayed, the flat elevated lesion was clearer. C, Endocytoscopic image (with narrow-band imaging). Microvessels of a hyperplastic polyp are very fine and obscure (endocytoscopic vascular pattern 1). D, Microscopic view of the resected specimen (H&E, orig. mag. X 100); hyperplastic polyp.

We think pit pattern diagnosis and EC-C are the gold standard of diagnosis for colorectal cancer. However, many endoscopists do not perform the dye staining method because it is complicated. Therefore we think if there was a diagnostic modality which has highly accurate ability without dye staining, it would be widely used all over the world.

The diagnostic accuracy of EC-V was substantially good, and it does not require dye. Furthermore the diagnosis time was significantly shorter than EC-C. However, endocytoscopy is not available commercially base, so we expect the launch of endocytoscopy.

Find the abstract for this article here.

The information presented in Endoscopedia reflects the opinions of the authors and does not represent the position of the American Society for Gastrointestinal Endoscopy (ASGE). ASGE expressly disclaims any warranties or guarantees, expressed or implied, and is not liable for damages of any kind in connection with the material, information, or procedures set forth.

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